Specifications include, but are not limited to: Minimum of 18,000 lbs. per column- total capacity of 72,000 lbs. Voltage: 220/440v, 3 phase Fixed Forks- With adapter plates Screw Lift - lift mechanism shall be a threaded screw and self-locking load bearing nut. The lift shall not rely on a back-up locking device in the event of failure. 3-Corded Cable System - So you can drive on and off without unplugging the cord. If lifts are controlled by a remote control, there shall also be a back-up method for control via a touch screen or other method located on the lift. The system shall have the ability to automatically detect obstructions to lowering the lift, causing the system to shut down until the obstruction is removed. The system shall include an automatic leveling system which prevents a height differential of greater than one (1) inch between all columns. Certified to the standards of the Automotive Lift Institute ANSI/ALI ALCTV-2011